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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "net/cert/ct_log_response_parser.h"
- #include <memory>
- #include <string>
- #include "base/base64.h"
- #include "base/json/json_reader.h"
- #include "base/time/time.h"
- #include "base/values.h"
- #include "net/cert/ct_serialization.h"
- #include "net/cert/signed_tree_head.h"
- #include "net/test/ct_test_util.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace net::ct {
- TEST(CTLogResponseParserTest, ParsesValidJsonSTH) {
- absl::optional<base::Value> sample_sth_json =
- base::JSONReader::Read(GetSampleSTHAsJson());
- SignedTreeHead tree_head;
- EXPECT_TRUE(FillSignedTreeHead(*sample_sth_json, &tree_head));
- SignedTreeHead sample_sth;
- ASSERT_TRUE(GetSampleSignedTreeHead(&sample_sth));
- ASSERT_EQ(SignedTreeHead::V1, tree_head.version);
- ASSERT_EQ(sample_sth.timestamp, tree_head.timestamp);
- ASSERT_EQ(sample_sth.tree_size, tree_head.tree_size);
- // Copy the field from the SignedTreeHead because it's not null terminated
- // there and ASSERT_STREQ expects null-terminated strings.
- char actual_hash[kSthRootHashLength + 1];
- memcpy(actual_hash, tree_head.sha256_root_hash, kSthRootHashLength);
- actual_hash[kSthRootHashLength] = '\0';
- std::string expected_sha256_root_hash = GetSampleSTHSHA256RootHash();
- ASSERT_STREQ(expected_sha256_root_hash.c_str(), actual_hash);
- const DigitallySigned& expected_signature(sample_sth.signature);
- ASSERT_EQ(tree_head.signature.hash_algorithm,
- expected_signature.hash_algorithm);
- ASSERT_EQ(tree_head.signature.signature_algorithm,
- expected_signature.signature_algorithm);
- ASSERT_EQ(tree_head.signature.signature_data,
- expected_signature.signature_data);
- }
- TEST(CTLogResponseParserTest, FailsToParseMissingFields) {
- absl::optional<base::Value> missing_signature_sth = base::JSONReader::Read(
- CreateSignedTreeHeadJsonString(1 /* tree_size */, 123456u /* timestamp */,
- GetSampleSTHSHA256RootHash(), ""));
- SignedTreeHead tree_head;
- ASSERT_FALSE(FillSignedTreeHead(*missing_signature_sth, &tree_head));
- absl::optional<base::Value> missing_root_hash_sth = base::JSONReader::Read(
- CreateSignedTreeHeadJsonString(1 /* tree_size */, 123456u /* timestamp */,
- "", GetSampleSTHTreeHeadSignature()));
- ASSERT_FALSE(FillSignedTreeHead(*missing_root_hash_sth, &tree_head));
- }
- TEST(CTLogResponseParserTest, FailsToParseIncorrectLengthRootHash) {
- SignedTreeHead tree_head;
- std::string too_long_hash;
- base::Base64Decode(
- base::StringPiece("/WHFMgXtI/umKKuACJIN0Bb73TcILm9WkeU6qszvoArK\n"),
- &too_long_hash);
- absl::optional<base::Value> too_long_hash_json =
- base::JSONReader::Read(CreateSignedTreeHeadJsonString(
- 1 /* tree_size */, 123456u /* timestamp */,
- GetSampleSTHSHA256RootHash(), too_long_hash));
- ASSERT_FALSE(FillSignedTreeHead(*too_long_hash_json, &tree_head));
- std::string too_short_hash;
- base::Base64Decode(
- base::StringPiece("/WHFMgXtI/umKKuACJIN0Bb73TcILm9WkeU6qszvoA==\n"),
- &too_short_hash);
- absl::optional<base::Value> too_short_hash_json =
- base::JSONReader::Read(CreateSignedTreeHeadJsonString(
- 1 /* tree_size */, 123456u /* timestamp */,
- GetSampleSTHSHA256RootHash(), too_short_hash));
- ASSERT_FALSE(FillSignedTreeHead(*too_short_hash_json, &tree_head));
- }
- TEST(CTLogResponseParserTest, ParsesJsonSTHWithLargeTimestamp) {
- SignedTreeHead tree_head;
- absl::optional<base::Value> large_timestamp_json =
- base::JSONReader::Read(CreateSignedTreeHeadJsonString(
- 100, INT64_C(1) << 34, GetSampleSTHSHA256RootHash(),
- GetSampleSTHTreeHeadSignature()));
- ASSERT_TRUE(FillSignedTreeHead(*large_timestamp_json, &tree_head));
- base::Time expected_time =
- base::Time::UnixEpoch() + base::Milliseconds(INT64_C(1) << 34);
- EXPECT_EQ(tree_head.timestamp, expected_time);
- }
- TEST(CTLogResponseParserTest, ParsesConsistencyProofSuccessfully) {
- std::string first(32, 'a');
- std::string second(32, 'b');
- std::string third(32, 'c');
- std::vector<std::string> raw_nodes;
- raw_nodes.push_back(first);
- raw_nodes.push_back(second);
- raw_nodes.push_back(third);
- absl::optional<base::Value> sample_consistency_proof =
- base::JSONReader::Read(CreateConsistencyProofJsonString(raw_nodes));
- std::vector<std::string> output;
- ASSERT_TRUE(FillConsistencyProof(*sample_consistency_proof, &output));
- EXPECT_EQ(output[0], first);
- EXPECT_EQ(output[1], second);
- EXPECT_EQ(output[2], third);
- }
- TEST(CTLogResponseParserTest, FailsOnInvalidProofJson) {
- std::vector<std::string> output;
- absl::optional<base::Value> badly_encoded =
- base::JSONReader::Read(std::string("{\"consistency\": [\"notbase64\"]}"));
- EXPECT_FALSE(FillConsistencyProof(*badly_encoded, &output));
- absl::optional<base::Value> not_a_string =
- base::JSONReader::Read(std::string("{\"consistency\": [42, 16]}"));
- EXPECT_FALSE(FillConsistencyProof(*badly_encoded, &output));
- absl::optional<base::Value> missing_consistency =
- base::JSONReader::Read(std::string("{}"));
- EXPECT_FALSE(FillConsistencyProof(*missing_consistency, &output));
- absl::optional<base::Value> not_a_dict =
- base::JSONReader::Read(std::string("[]"));
- EXPECT_FALSE(FillConsistencyProof(*not_a_dict, &output));
- }
- TEST(CTLogResponseParserTest, ParsesProofJsonWithExtraFields) {
- std::vector<std::string> output;
- absl::optional<base::Value> badly_encoded = base::JSONReader::Read(
- std::string("{\"consistency\": [], \"somethingelse\": 3}"));
- EXPECT_TRUE(FillConsistencyProof(*badly_encoded, &output));
- }
- } // namespace net::ct
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